US10871789B2 - Regulator - Google Patents

Regulator Download PDF

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Publication number
US10871789B2
US10871789B2 US16/149,115 US201816149115A US10871789B2 US 10871789 B2 US10871789 B2 US 10871789B2 US 201816149115 A US201816149115 A US 201816149115A US 10871789 B2 US10871789 B2 US 10871789B2
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US
United States
Prior art keywords
pressure regulating
seated seat
regulating valve
pressure
valve body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
US16/149,115
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English (en)
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US20190101942A1 (en
Inventor
Naoya Suenaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikki Co Ltd
Original Assignee
Nikki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nikki Co Ltd filed Critical Nikki Co Ltd
Assigned to NIKKI CO., LTD. reassignment NIKKI CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SUENAGA, NAOYA
Publication of US20190101942A1 publication Critical patent/US20190101942A1/en
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Publication of US10871789B2 publication Critical patent/US10871789B2/en
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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
    • G05D16/106—Sleeve-like sensing elements; Sensing elements surrounded by the flow path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0239—Pressure or flow regulators therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7808—Apertured reactor surface surrounds flow line

Definitions

  • the present invention relates to a regulator used in reduction of pressure of high-pressure fluid into intended pressure.
  • a regulator that opens/closes a pressure regulating valve through a piston by pressure fluctuation in a pressure regulation chamber and that controls a flow rate of high-pressure fluid is known for a long time as presented in Japanese Unexamined Utility Model Publication No. S52-92436, and is used for a pressure regulator or the like of when high-pressure fuel such as CNG stored in a fuel tank is supplied to an engine, for example.
  • FIG. 5 to FIG. 8 are views illustrating an example of the regulator in related art.
  • One open end of a tubular path 2 formed through a main body part 1 is an inlet port 21 of high-pressure fluid and the other open end thereof is an outlet port 22 of pressure-reduced fluid.
  • An inlet cover 23 to airtightly introduce high-pressure fluid and an outlet cover 24 to airtightly extract pressure-regulated fluid pressure of which is regulated are respectively arranged in the inlet port 21 and the outlet port 22 .
  • a valve seat 3 including a seat holding member 33 that is a bulkhead in which a cylindrical valve seated seat 31 is provided inside by fitting of an outer peripheral projected edge provided in a projected manner on an outer peripheral end surface thereof into a fitting recessed part and in which a through hole 32 in an axial direction of the path 2 is formed is arranged in an inner side of the inlet port 21 in the path 2 .
  • a pressure regulation chamber 4 is formed in a direction on a side of the outlet port 22 of the valve seated seat 31 in the path 2 .
  • a piston pressure regulating valve 7 including a pressure regulating valve body 5 , which includes a leading end surface 51 that can be closely in contact with the valve seated seat 31 of the valve seat 3 and which includes a tubular communicating path 52 both ends of which are opened, and a piston unit 6 that is formed around an outer periphery on a side of the outlet port 22 in the path 2 of the pressure regulating valve body 5 and that has a diameter larger than that of the pressure regulating valve body 5 is arranged slidably in the axial direction of the path 2 between the pressure regulation chamber 4 and the outlet port 22 in the path 2 .
  • the piston unit 6 is biased in a circumference thereof in a direction of the outlet port 22 in the path 2 by a pressure regulating spring 8 that has a predetermined load and that is arranged in an atmosphere chamber 61 provided concentrically in parallel with the pressure regulation chamber 4 .
  • a load due to pressure of high-pressure fluid that is introduced from the inlet port 21 is introduced to the pressure regulation chamber 4 provided in such a manner as to face the valve seated seat 31 through the through hole 32 formed in the valve seated seat holding member 33 of the valve seat 3 , passes through the pressure regulating valve body 5 in which the communicating path 52 is formed, and affects the piston unit 6 joined to the pressure regulating valve body 5 and a load by the pressure regulating spring 8 that affects the piston unit 6 to an opposite of the pressure regulation chamber 4 are balanced, whereby opening areas of the valve seated seat 31 and the pressure regulating valve body 5 are changed to control fluid pressure in the pressure regulation chamber 4 . Accordingly, fluid regulated to intended pressure is extracted from the outlet port 22 .
  • the pressure regulating spring 8 is inserted from the outlet port 22 before attachment of the outlet cover 24 and the piston pressure regulating valve 7 is subsequently inserted therefrom during assembly.
  • the pressure regulating spring 8 is inserted from the outlet port 22 before attachment of the outlet cover 24 and the piston pressure regulating valve 7 is subsequently inserted therefrom during assembly.
  • a seat diameter (ds) of each of the valve seated seat 31 and the pressure regulating valve body 5 is set to be smaller than a diameter (db) of a high-pressure fuel airtight seal 91 in an outer peripheral part of the pressure regulating valve body 5 .
  • the present invention is to solve the problem, that is, to reduce an individual difference between products due to a size tolerance of each of a valve seated seat holding member 33 , a valve seated seat 31 , a piston pressure regulating valve 7 , and a main body part 1 affected by a load of a pressure regulating spring 8 , or a load variation at a set point of the pressure regulating spring 8 and to provide a regulator without a function loss due to a damage, leakage failure, or the like of the valve seated seat 31 .
  • a pressure regulation chamber is arranged on an inner side of the inlet port in the path through a valve seat including a valve seated seat holding member which includes a valve seated seat on an inner side and in which a through hole in an axial direction of the path is formed, a piston pressure regulating valve including a pressure regulating valve body that has a leading end surface capable of being closely in contact with the valve seated seat and that includes a tubular communicating path with opened both ends, and a piston unit formed around an outer periphery, on a side of the outlet port in the path, of the pressure regulating valve body is biased in an outlet port direction in the path between the pressure regulation chamber and the outlet port in the path by a pressure regulating spring having a predetermined load and arranged slidably in the axial direction of the path in
  • the present invention it becomes possible to set a pressure regulating spring in a designated load position during assembly.
  • a pressure regulating spring in a designated load position during assembly.
  • the present invention it is possible to easily and securely set the pressure regulating spring in a designated load position by monitoring a spring load and performing fixation in a state, in which a designated load is reached, when the pressure regulating valve body inserted from the inlet port into the path and the piston unit inserted from the outlet port into the path are fit to each other in an intended axial direction position.
  • a diameter of the valve seated seat is made to be the same with a diameter of a high-pressure fuel airtight seal inserted and fit between an inner peripheral surface of the path, which is arranged in such a manner as to face the valve seated seat, and an outer periphery of the pressure regulating valve body.
  • the valve seated seat is provided slidably, in an axial direction of the path, in a recessed part formed in the valve seated seat holding member through a buffer formed from a high-polymer material having elasticity.
  • FIG. 1 is a sectional view illustrating an embodiment of the present invention of when a valve is closed
  • FIG. 2 is a sectional view illustrating the embodiment illustrated in FIG. 1 of when the valve is opened;
  • FIG. 3 is a sectional view in which a piston pressure regulating valve part of when the valve is closed in the embodiment illustrated in FIG. 1 is enlarged;
  • FIG. 4 is a sectional view in which a valve seat part of when the valve is closed in the embodiment illustrated in FIG. 1 is further enlarged;
  • FIG. 5 is a sectional view illustrating an embodiment in related art of when a valve is closed
  • FIG. 6 is a sectional view illustrating the related art illustrated in FIG. 5 of when the valve is opened;
  • FIG. 7 is a sectional view in which a piston pressure regulating valve part of when the valve is closed in the related art illustrated in FIG. 5 is enlarged;
  • FIG. 8 is a sectional view in which a valve seat part of when the valve is closed in the related art illustrated in FIG. 5 is further enlarged.
  • FIG. 1 to FIG. 4 are sectional views of a preferred embodiment of the present invention.
  • a whole configuration is substantially similar to that of related art illustrated in FIG. 5 to FIG. 8 , and a detailed description of these parts is omitted. Also, the same sign is assigned to a configuration part identical to that of the related art and described.
  • a point different from the related art is that a cylindrical pressure regulating valve body 5 closely in contact with a valve seated seat 31 and a cylindrical piston unit 6 that is formed around an outer periphery thereof and that affects a pressure regulating spring 8 are formed separately in a piston pressure regulating valve 7 .
  • the pressure regulating valve body 5 and the piston unit 6 that is formed around the outer periphery thereof, the two being formed separately and forming the piston pressure regulating valve 7 are preferably formed in a close contact state in such a manner as to be insertable into a bore in which crimping is possible. It is preferably possible to temporarily join the two during assembly by inserting the pressure regulating valve body 5 separated from the piston unit 6 from an inlet port 21 into a path 2 , inserting the piston unit 6 from an outlet port 22 into the path 2 , and performing fitting to each other in a predetermined position in an axial direction in the path 2 .
  • a leading end, which is on a side in contact with the valve seated seat 31 , of the cylindrical pressure regulating valve body 5 including a communicating path 52 inside has a tapered shape enlarged toward the leading end, a leading end on the opposite side has a shape of being joined to a coupling hole 62 in a center part of the piston unit 6 , and an outer peripheral part is guided by a main body part 1 through a high-pressure fuel airtight seal 91 . Also, an outer peripheral part of the piston unit 6 is guided by the main body part 1 through a seal member 92 .
  • a seat diameter (Ds) of a part of the pressure regulating valve body 5 which part is in contact with the valve seated seat 31 is equivalent to a seat diameter (Db) between the high-pressure fuel airtight seal 91 provided in the outer peripheral part of the pressure regulating valve body 5 , and the pressure regulating valve body 5 .
  • a valve seated seat holding member 33 that forms a valve seat 3 is sandwiched in a step 11 inside the main body part 1 with a buffer 93 including an O-RING of a high-polymer material having high slidability and elasticity being between the inlet cover 23 to airtightly hold fuel and the valve seated seat holding member 33 , and is semi-fixed only by elastic force of the buffer 93 .
  • the valve seated seat holding member 33 of the valve seat 3 has a structure of being slidable in a direction orthogonal to an axis.
  • a substantially whole configuration and a pressure-reducing method of the above present embodiment are substantially similar to those of related art illustrated in FIG. 5 to FIG. 8 described above.
  • the cylindrical pressure regulating valve body 5 that is closely in contact with the valve seated seat 31 and the cylindrical piston unit 6 that is formed around an outer periphery thereof and that affects the pressure regulating spring 8 , the two being formed by the piston pressure regulating valve 7 are formed separately.
  • the pressure regulating valve body 5 inserted from the inlet port 21 into the path 2 and the piston unit 6 inserted from the outlet port 22 into the path 2 are fit to each other in an intended axial direction position, and the pressure regulating valve body 5 and the piston unit 6 are fixed by welding or the like in a position, in which a load of the pressure regulating spring 8 becomes a designated load, and configure the piston pressure regulating valve 7 .
  • a load of the fuel inlet pressure (Pin) applied to the piston pressure regulating valve 7 can be canceled.
  • a diameter of the valve seated seat 31 that forms the valve seat 3 is formed to be the same with a diameter of the high-pressure fuel airtight seal 91 inserted and fit between an inner peripheral surface of the path 2 , which is arranged in such a manner as to face the valve seated seat 31 , and an outer periphery of the pressure regulating valve body 5 .
  • an inner peripheral leading end, which is on a side of the valve seated seat 31 , of the pressure regulating valve body 5 is formed in a tapered shape enlarged toward a leading end direction, and the valve seated seat 31 is provided slidably in the axial direction of the path 2 in a recessed part formed in the valve seated seat holding member 33 through an airtight member including, for example, an elastic material.
  • valve seated seat holding member 33 that holds the valve seated seat 31 is slid and moved along with a contact part between the valve seated seat 31 and the pressure regulating valve body 5 , the pressure regulating valve body 5 and the valve seated seat 31 are securely coaxial, and a contact surface between the valve seated seat 31 and the pressure regulating valve body 5 is uniformed, whereby an opening area of when a valve is opened also becomes uniform and it is possible to perform closing in such a manner that the valve seated seat 31 is closely in contact with the pressure regulating valve body 5 securely during closing.
  • the inner peripheral leading end, which is on the side of the valve seated seat 31 , of the pressure regulating valve body 5 is formed in a tapered shape enlarged toward the leading end direction, it becomes possible to automatically acquire effects such as valve leakage prevention, stabilization of a pressure-regulation performance, and control of a variation between products.
  • the pressure regulating valve body 5 and the piston unit 6 it is possible to fix the pressure regulating valve body 5 and the piston unit 6 in a designated load position while measuring a load of the pressure regulating spring 8 during assembly, fixation being usually performed by welding or the like.
  • fixation being usually performed by welding or the like.
  • the pressure regulating valve body 5 and the piston unit 6 can be fit to each other by crimping, when pressure of used fluid is not that high, strength and airtightness can be secured in a temporally joined state in which fitting is performed in a press-fitted state, and a cost can be reduced by elimination of welding processing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Fluid Pressure (AREA)
  • Safety Valves (AREA)
  • Fluid-Driven Valves (AREA)
US16/149,115 2017-10-02 2018-10-01 Regulator Active US10871789B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-193078 2017-10-02
JP2017193078A JP6974834B2 (ja) 2017-10-02 2017-10-02 レギュレータ

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US20190101942A1 US20190101942A1 (en) 2019-04-04
US10871789B2 true US10871789B2 (en) 2020-12-22

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US (1) US10871789B2 (ja)
EP (1) EP3462272B1 (ja)
JP (1) JP6974834B2 (ja)
CN (1) CN109595369B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11739715B2 (en) 2020-10-19 2023-08-29 Nikki Co., Ltd. Regulator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7197132B2 (ja) * 2019-02-14 2022-12-27 株式会社ニッキ レギュレータ
GB2594320A (en) * 2020-04-24 2021-10-27 Xiamen Synbop Tech Co Ltd Small water heater
CN112797209A (zh) * 2021-01-28 2021-05-14 浙江元曜阀业有限公司 一种三级减压阀
JP2022144007A (ja) * 2021-03-18 2022-10-03 株式会社ニッキ レギュレータ
JP2023175563A (ja) 2022-05-30 2023-12-12 株式会社ニッキ 電子制御式レギュレータ

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888949A (en) * 1957-04-25 1959-06-02 Robertshaw Fulton Controls Co Flow control device
US3435843A (en) * 1966-01-05 1969-04-01 Otis Eng Corp Valves
US4020863A (en) * 1975-10-09 1977-05-03 Robertshaw Controls Company Fluid pressure regulator construction
JPS5292436A (en) 1976-01-30 1977-08-03 Hitachi Ltd Optical letter scanning unit
US5860447A (en) * 1996-05-10 1999-01-19 Chu; David In line pressure regulator valve with passive pressure release
US6374853B1 (en) * 2000-11-30 2002-04-23 Lindsay Manufacturing Company Combined pressure regulator and shut-off valve
US20020088495A1 (en) * 2001-01-11 2002-07-11 Roberto Semeia Pressure reducing valve
US7191790B1 (en) * 2003-07-04 2007-03-20 Scott Technologies, Inc. Quick connect pressure reducer/cylinder valve for self-contained breathing apparatus
US20070284004A1 (en) * 2006-06-09 2007-12-13 Nelson Irrigation Corporation Modular pressure regulator
US20090242043A1 (en) * 2008-03-31 2009-10-01 Gm Global Technology Operations, Inc. Hydrogen supply pressure regulator
US20150259057A1 (en) * 2014-03-13 2015-09-17 Johnson Outdoors Inc. Thermal Insulating Bushing for Piston First Stages

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US3890999A (en) * 1972-12-15 1975-06-24 Eugene D Moskow Fluid pressure regulator
JPS5552146Y2 (ja) * 1976-01-06 1980-12-03
JP2767544B2 (ja) * 1994-01-31 1998-06-18 エヌテーシー工業株式会社 水道用定圧弁
JP2006292184A (ja) * 2005-04-06 2006-10-26 Tgk Co Ltd 膨張装置
DK2166424T3 (en) * 2008-09-19 2017-09-18 Isomatic As Fluid regulator
CN102494156B (zh) * 2011-12-15 2013-04-10 重庆科特工业阀门有限公司 泄压指挥阀
JP6218023B2 (ja) * 2013-09-25 2017-10-25 株式会社テージーケー 電磁弁
CN105715841A (zh) * 2016-04-01 2016-06-29 成都科盛石油科技有限公司 一种气阀结构
CN206093089U (zh) * 2016-10-27 2017-04-12 泸州江阳超能燃气有限责任公司 一种用于压缩天然气减压的减压器
CN206145206U (zh) * 2016-10-27 2017-05-03 泸州江阳超能燃气有限责任公司 一种减震型天然气减压器

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888949A (en) * 1957-04-25 1959-06-02 Robertshaw Fulton Controls Co Flow control device
US3435843A (en) * 1966-01-05 1969-04-01 Otis Eng Corp Valves
US4020863A (en) * 1975-10-09 1977-05-03 Robertshaw Controls Company Fluid pressure regulator construction
JPS5292436A (en) 1976-01-30 1977-08-03 Hitachi Ltd Optical letter scanning unit
US5860447A (en) * 1996-05-10 1999-01-19 Chu; David In line pressure regulator valve with passive pressure release
US6374853B1 (en) * 2000-11-30 2002-04-23 Lindsay Manufacturing Company Combined pressure regulator and shut-off valve
US20020088495A1 (en) * 2001-01-11 2002-07-11 Roberto Semeia Pressure reducing valve
US7191790B1 (en) * 2003-07-04 2007-03-20 Scott Technologies, Inc. Quick connect pressure reducer/cylinder valve for self-contained breathing apparatus
US20070284004A1 (en) * 2006-06-09 2007-12-13 Nelson Irrigation Corporation Modular pressure regulator
US20090242043A1 (en) * 2008-03-31 2009-10-01 Gm Global Technology Operations, Inc. Hydrogen supply pressure regulator
US20150259057A1 (en) * 2014-03-13 2015-09-17 Johnson Outdoors Inc. Thermal Insulating Bushing for Piston First Stages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11739715B2 (en) 2020-10-19 2023-08-29 Nikki Co., Ltd. Regulator

Also Published As

Publication number Publication date
EP3462272B1 (en) 2021-05-19
JP6974834B2 (ja) 2021-12-01
EP3462272A1 (en) 2019-04-03
JP2019067216A (ja) 2019-04-25
CN109595369A (zh) 2019-04-09
CN109595369B (zh) 2022-03-22
US20190101942A1 (en) 2019-04-04

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